Air-motor.



J. R. KINNEY.

AIR MOTOR.

APPLICATION FILED JUNE 26, 1913. 1,123,81 1 I Patented Jan. 5, 1915.

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Wibwwes: Inventor:

THE NORRIS PETERS c0.. FHOTO-LITHQ. WASHING roN. D Cv Patented J an. 5, 1915.

2 SHEETS-BHBET 2 AIR MOTOR.

J. R. KINNEY.

J IL APPLICATION FILED JUNE 26, 1913.

rn PHOTO-LI1H(L,WASHINGTON. I). l

UNITED STATES PATENT OFFICE.

JUSTUS R. KINNEY, 0F BOSTON, MASSACHUSETTS.

Application filed June 26, 1913.

To all whom it may concern Be it known that I, JUs'rUs R. KINNEY, a citizen of the United States of America, and a resident of Boston, in the county of Suflfolk and State of Massachusetts, have invented certain new and useful Improvements in Air-Motors, of which the following is a specification.

This invention relates to air motors and particularly to that type of motors in which a piston is reciprocated by a supply of compressed air intermittently admitted to the piston chamber.

The main object of the invention is to reorganizeand improve the construction of a motor of this character, and to provide such a motor which will be cheap to manufacture, efficient in operation, and not liable to get out of order in continued use.

The invention consists in a plurality of standards from which oscillating cylinders are suspended, each cylinder being provided with two side ports one of which is adapted to register with an inlet port in said standard during the movement of said cylinder in one direction while the other port is adapted to register with the outlet port in said standard during the movement of said cylinder in the opposite direction.

The invention further consists in certain novel features of construction and arrangement of parts which will be fully understood by reference to the description of the draw ings and to the claims hereinafter given.

Of the drawings: Figure 1 represents a horizontal section of a motor embodying the principles of the present invention, the cutting plane being on line 3-3 on F 1g. 3. Fig. 2 represents a vertical section of the same, the cutting plane being on line 2-2 on Fig. 3. Fig. 3 represents a transverse section of the same, the cutting plane being on line 1-1 on Fig. 2, and Fig. 4 represents a partial section, the cutting plane being on line 44 on Fig. 1.

Similar characters designate like parts throughout the several figures of the drawings.

In the drawings, 10 represents the base Specification of Letters Patent.

AIR-MOTOR.

Patented Jan. 5, 1915.

Serial No. 776,434.

rocate in a cylinder 18 threaded or otherwise secured to a cylinder head 19. Each cylinder head 19 is provided with a cylindrical opening extending transversely thereof, through which extends a cylindrical member or rod 20. This rod 20 extends through the upper ends of a plurality of standards 21 secured by the bolts 22 to the flanged upper end of the casing 11. The upper end of the casing 11 is open as shown in Fig. 3 of the drawings. that the cylinders 18 are suspended from the rod 20 and are adapted to oscillate about the axis thereof during the rotation of the crank shaft 14. While in the drawings It is obvious three cylinders 18 are shown it is self-evident that a greater number may be used if desired, the cranks connected to the pistons in these cylinders being equally distributed aboutthe axis of the crank shaft 14.

The upper ends of the standards 21 are provided with bearing faces contacting with similar bearing faces formed upon the cylinder heads 19, said bearing faces being held in contact by means of the nuts 23 threaded to the ends of the rod 20. Each cylinder head is provided with two pas sages 24 and 25 communicating with the interior of the cylinder and having ports 26 and 2'? in one bearing face of said head.

by means of a passage 30 with an inlet pipe 31 from any suitable supply of compressed air. The outlet port 29 communicates by means of a passage 32 with a discharge pipe 33. s

It is obvious from an inspection of the drawings that when the cylinder 18 is in vertical position the various ports 26 and Y 27, 28, and 29 will be closed by means of the opposed beari'ng faces and all communica crank shaft'l l, and during this movement the ports 26 and 28 are gradually closed until a complete cutoff is obtained when the crank 15 reaches its lowermost position. As the crank shaft 1& continues to rotate and the piston 17 is moved in the opposite direction the ports 27 and 29 arevgradually brought intoregister and the air in said cylinder 18 is forced therefrom into. the dis- "charge. pipe.33. At this time the cylinder per position.

18. will be in the position indicated in Fig. 3 by the dotted lines I). When in this position the outlet ports are fully opened and the further movement of the crank into its upper vertical position will "gradually out 011' the outlet .ports, the full cutoff being completed when the crank reaches said up- Further movement of the crankwillcause'the inlet ports 26 and 28 to gradually register until the full opening is secured when in the cycle of'the crank the cylinder again reaches the position indicated by the dotted lines-a. It is obvious from an inspection of vthe drawings that the inlet port of oneof the cylinders18 is always open so that when it is desired to operate the motor. by opening a valve (not shown) in the pipe 31 the air under pressure may be admitted to this cylinder causing an initial rotation to the crank 1 shaft, this rotation causing the movement v gsuccessively of the other cylinders into a "position where the inlet valves thereto will be uncovered to permit the admission of air to said cylinders, thereby continuing the rotation of said crank shaft.

It is self-evident that the ports in each cylinder head 19 are located one on each side i of a vertical line through the center of the rod20, on which said cylinders swing, and when said cylinders are on one side of said vertical line, compressed air .may be ad mitted thereto, while, when on the other side of said vertical line, the admission of air is cut off and the exhaust ports are'openedr' This makes a very simple construction of motors in which the parts are reduced to a 1 minimum without in any manner reducing the efliciency of the device It is believed that the operation and many advantages of this invention will be fully understood from the foregoing description.

Having thus described my invention, I claim:

1. In a device of the class described, the

combination of two standards separated at their upper ends, one of which is provided with an inlet passage and an outlet passage communicating with ports in, a side face thereof; a suspended cylinder having a side face thereof adapted to oscillate in contact with the ported face of said standard and having ports in said contacting face normally out ,of register with those in said standard; a reciprocating piston in said cylinder; means for oscillating said cylinder,

andmeans for taking up the wear in said contacting side face 2 In a device of the class described, the

combination of two standards separated at their upper ends, one of which'is provided with an inlet passage and anzoutlet passage communicating with horizontally alined ports in a side face thereof; a suspended cylinder adapted to oscillate aboutlanaxis immediately below the line .of said ports, and provided with horizontally alined ports immediately below said axis adapted to oscillate therewith and intermittently register with the ports in one of said standards; a I

reciprocating piston in said cylinder; and

means for oscillating said cylinder.

3. In a device of the class described, th combination of an oscillating cylinder the head of which is provided with a broad fiat ":i

face parallel with the axis of saidcylinder, sald face being provided with two ports communicating with the interiorof said cylinder; a standardfor said cylinder provided with a broad fiat facecontacting with. the

ported face of said cylinder and having two ports therein normally out of alinement with the cylinder ports, one of said standard ports communicating with aninlet passage and the other with an exhaust passage; a

reciprocating piston in said cylinder; means for oscillating said cylinderand its broad flat ported face in contact with the flat,

ported face of a standard to cause its ports to register alternately with the inletand ex- 1 haust ports of said standard; and means co- ,acting-with said standard for retaining said ported faces in contact.

4. Ina device of the class described, the

combination of an oscillating cylinder; a

valve member on the cylinder having ports opening through asurface perpendicular to the axis of oscillation; a stationary valve member having ports opening through a similar surface andin contact with which:

said piston valve member is adapted to os cillate; and means for taking up wear between said surfaces. I V

5. In a device :ofthe class described,*the

combination of a rod; a plurality of cylintooscillate; and means on the rod for forcders mounted to oscillate about the rod; a ing the cylinders and supportstogether. 10 support for said rod adjacent each cylinder; Signed by me at 100 Boylston St., Boston,

a valve member on each cylinder having Mass, this 13th day of June, 1913.

ports opening through a surface perpendicu- J USTUS R. KINNEY. lar to said rod; a similar coacting valve Witnesses:

member on each support and in contact with WALTER E. LOMBARD,

which said piston valve member is adapted N. C. LOMBARD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patento,

Waahlngton, D. 0." 

